LMX9820 National Semiconductor, LMX9820 Datasheet - Page 7

• Manufacturer Part Number: LMX9820
• Description: Bluetooth Serial Port Module
• Manufacturer: National Semiconductor

Revision 1.0
5.0 Pad Descriptions
1.
1.
Pad Name
PH3_TP9
PH2_TP8
Pad Name
NC
RF GND
Dig_gnd_1
Dig_gnd_2
VCC
VDD_ANA_OUT
VDD_DIG_OUT
VDD_DIG_PWR
_D#
Treat as No Connect, Pad required for mechanical stability.
Connect RF GND, Dig_gnd_1, and Dig_gnd_2 to single Ground plane.
1
1
1
A1, A2, A3, A4, A5,
A6, A7, B1, C1, D1,
D13, E1, E13, F1,
G1, G7, H1, H4, J1,
J3, J6, J7, J9, J10,
J11
B2, B3, B4, B5, B6,
B7, C2, C3, C4, C5,
C6, C7, D2, D3, D4,
D5, D6, D7, E2, E3,
E4, E5, E6, E7, F2,
F3, F4, F5, F6, F7,
G2, G3, G4, G5,
G6, H5, H6, H7, H9,
H10, H11
Location
G13
Pad
F13
Location
Pad
D12
G11
H2
(Continued)
J2
J5
J4
Table 8. Power, Ground, and No Connect Signals
Table 7. Test Interface Signals (Continued)
Direction
Testpin
Testpin
not
connected
Input
Direction
Output
Output
Input
Input
Input
Input
Description
Module Test Point.
Module Test Point.
Description
No Connect. Must have pad for mechanical stability.
Radio System Ground. Must be connected to RF Ground
plane. Thermal relief required for proper soldering.
Digital Ground.
Digital Ground.
2.85V to 3.6V Input for the Internal Power Supply Reg-
ulators.
Voltage Regulator Output/Power Supply for Analog
Circuitry. If not used, place pad and do not connect to VCC
or Ground.
Voltage Regulator Output/Power Supply for Digital Cir-
cuitry. If not used, place pad and do not connect to VCC or
Ground.
Power Down for the Internal Power Supply Regulator
for the Digital Circuitry. Place pad and do not connect to
VCC or Ground.
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